10/03/2008 @ 4:00PM

In Depth: What It Will Cost To Heat Your Home

6. Baltimore, Md.

Average annual heating cost: $1,568

Residents using heating oil: 14%

Residents using natural gas: 46%

Residents using propane: 3%

Residents using electricity: 35%

Like Washington, D.C., Baltimore residents rely heavily on electricity for heating purposes. The cost of electricity, relative to how many British thermal units of heat it can generate, makes this expensive.